柯林斯詞典sofa bed (also sofa-bed) (sofa beds) 1. N-COUNT A sofa bed is a type of sofa whose seat folds out so that it can also be used as a bed. 沙發(fā)床 返回 sofa bed劍橋詞典a sofa that opens to form a bed 沙發(fā)床 返回 sofa bed